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Crack the Core > IR > Flashcards

IR Flashcards

1
Q

Allen test

A
  • Test done prior to radial artery access to confirm ulnar flow to the hand
  • pulse ox placed on middle finger while both ulnar and radial arteries are manually compressed
  • releasing ulnar artery should improve desaturation
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2
Q

risks of brachial artery access

A
  • medial brachial fascial compartment syndrome
  • vessels spasm
  • higher risk of stroke
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3
Q

anticoagulation parameters prior to arterial stick

A
  • stop heparin 2 hrs prior to procedure (PTT 1.2 x control or less; normal 25-35 sec)
  • INR of 1.5
  • platelets > 50 k
  • stop coumadin 5-7 days prior (vit K 25-50 mG IM 4 hours prior or FFP/Cryo)
  • stop ASA/plavix 5 days prior
  • no antibiotic PPX needed
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4
Q

PICC line: preferred location

A
  • non -dominant arm

- Basilic > brachial > cephalic

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5
Q

National Kidney Foundation- Dialysis Outcome Quality initiative

A

RIJ > LIJ > REJ> LEJ

- do not place PICCs in dialysis patients

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6
Q

ideal balloon dilation

A

10-20% over normal artery diameter

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7
Q

Embolization using coils

A
  • varicocele (spermatic veins)
  • pulmonary AVM
  • segmental renal artery aneurysm
  • GI bleed (microcoils)
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8
Q

embolization using autologous blood clot

A

post-traumatic high flow priapism

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9
Q

embolization using PVA

A
  • uterine fibroid embo (PVA or microspheres 500-1000 microns)
  • bronchial artery embo
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10
Q

rate of thrombosis in permanent IVC filters

A

10% within 5 years

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11
Q

Situations when you would place a suprarenal IVC filter

A
  • pregnancy
  • duplicated IVC
  • clot in renal or gonadal veins
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12
Q

slow flow in HD graft? in fistula?

A

for fistula: < 600 cc/min

for graft: < 500 cc/ min

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13
Q

dialysis associated steal syndrome (DASS)

A

cold, painful fingers/ pale hand during dialysis, relieved by manual compression of the fistula

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14
Q

What is included in MELD score?

A
  • creatinine
  • Bilirubin
  • INR
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15
Q

What is included in Childs-Pugh score

A
  • ascites
  • encephalopathy
  • bilirubin
  • PT
  • albumin
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16
Q

SIR practice guideline for pre-procedure hold for procedures with moderate risk of bleeding (liver or lung biopsy, abscess drain, vertebroplasty, tunneled line placement)

A
  • INR > 1.5
  • plt > 50k
  • hold plavix for 5 days
  • aspirin does NOT need to be held
17
Q

maximum dose of lidocaine

A

4-5 mg /kg

-7 mg/kg for lido with epi

18
Q

branches of the internal iliac

A

anterior: umbilical (gives off superior vesicular), inferior vesicular, obturator, uterine, middle rectal, internal pudendal, inferior gluteal
posterior: Iliolumbar, lateral sacral, Superior gluteal

19
Q

Winslow Pathway

A
  • collateral pathway in setting of aorto iliac occlusive disease
  • sublcavian artery –> internal thoracic (mammary) arteries –> superior epigastric –> inferior epigastric –> external ilaic
20
Q

Corona Mortis

A

vascular connection between obturator and external iliac; vessel courses over superior pubic rim
- can be injured in pelvic trauma or surgery

21
Q

branches of subclavian artery

A
  • vertebral
  • internal thoracic
  • thyrocervical trunk
  • costocervical turnk
  • dorsal scapular
22
Q

aortic aneurysm repair sizes

A

> 6 cm in chest
5.5 cm if collagen vascular diseas
5 cm in abdomen

23
Q

which sinus is most commonly involved by sinus of valsalva aneurysm?

A

right cusp

24
Q

Carotid Doppler

  • normal PSV in ICA
  • normal ICA/CCA ratio
  • normal ICA end diastolic velocity
  • 50-69% stenosis
  • > 70% stenosis
A
  • normal PSV< 125 cm/s
  • ratio < 2
  • EDV < 40 cm/s
  • 50-69% stenosis: 125-230 cm/s, ratio 2-4, EDV 40-100
  • > 70% stenosis: > 230 cm/s; ratio> 4, EDV > 100
25
Q

Cogan syndrome

A

large vessel vasculitis that affects children and young adults

  • optic neuritis
  • uveitis
  • audiovestibular symptoms similar to menieres
  • aortitis
26
Q

ANCA positive small vessel vasculitides

A
  • Wegeners (cANCA)
  • microscopic polyangiitis (pANCA)
  • Churg Strauss (pANCA)
27
Q

ANCA negative small vessel vasculitidies

A
  • HSP
  • Behcets
  • Buegers
28
Q

T2 dark renal lesion differential

A
  • papillary RCC
  • hemorrhagic cyst
  • lipid poor AML
29
Q

Heyde syndrome

A

colonic angiodysplasia + aortic stenosis

30
Q

T2 dark renal differential

A
  • papillary RCC
  • lipid poor AML
  • hemorrhagic cyst

Crack the Core (12 decks)

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